131430544 has 30 divisors (see below), whose sum is σ = 296223414. Its totient is φ = 56327040.

The previous prime is 131430529. The next prime is 131430599. The reversal of 131430544 is 445034131.

It can be written as a sum of positive squares in only one way, i.e., 98803600 + 32626944 = 9940^2 + 5712^2 .

It is a super-2 number, since 2×131430544² = 34547975792271872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83037 + ... + 84604.

Almost surely, 2^131430544 is an apocalyptic number.

131430544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131430544 is an abundant number, since it is smaller than the sum of its proper divisors (164792870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131430544 is a wasteful number, since it uses less digits than its factorization.

131430544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167663 (or 167650 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 131430544 is about 11464.3161156695. The cubic root of 131430544 is about 508.4310929305.

Adding to 131430544 its reverse (445034131), we get a palindrome (576464675).

The spelling of 131430544 in words is "one hundred thirty-one million, four hundred thirty thousand, five hundred forty-four".